Changed to new line data structures (__LDATA and __LINE) and

[unix-history] / usr / src / lib / libcurses / insch.c

/*
* Copyright (c) 1981 Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)insch.c     5.8 (Berkeley) %G%";
#endif  /* not lint */

#include <curses.h>

/*
* winsch --
*      Do an insert-char on the line, leaving (cury, curx) unchanged.
*/
int
winsch(win, ch)
       register WINDOW *win;
       int ch;
{

       register __LDATA *end, *temp1, *temp2;

       end = &win->lines[win->cury]->line[win->curx];
       temp1 = &win->lines[win->cury]->line[win->maxx - 1];
       temp2 = temp1 - 1;
       while (temp1 > end) {
               bcopy(temp2, temp1, sizeof(__LDATA));
               temp1--, temp2--;
       }
       temp1->ch = ch;
       temp1->attr &= ~__STANDOUT;
       touchline(win, win->cury, win->curx, win->maxx - 1);
       if (win->cury == LINES - 1 && 
           (win->lines[LINES - 1]->line[COLS - 1].ch != ' ' ||
           win->lines[LINES -1]->line[COLS - 1].attr != 0))
               if (win->flags & __SCROLLOK) {
                       wrefresh(win);
                       scroll(win);
                       win->cury--;
               } else
                       return (ERR);
       return (OK);
}